This must be set. 0 means this upgrade job will be executed every time.
Anyhting else should be a valid CONTENIDO version. Only if the upgraded version
is older than this string the job will be executed.

This must be set. 0 means this upgrade job will be executed every time.
Anyhting else should be a valid CONTENIDO version. Only if the upgraded version
is older than this string the job will be executed.

Setting this to '4.8.18' would mean that any version lower than 4.8.18 will
get the upgrade job.